Glass workins machine



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GLASS WORKING Ml-CHNE Filed April 15, 1927 I 1s sheets-sheet 18 IIIIIIIIIIIIIIVII! V ATTORNEYS..

lmanufacture of blown glass articles.

Patented Jan. 27, 1931 UNITED STATES WILLIAM J". wqons AND DAvID E. GRAY,

0F CORNING, NEW YORK, ASSIGNORS TO CORNING GLASS WORKS, OF CORNING, NEW YORK, A CORPORATION OF NEW YORK GLASSLWORKING MACHINE Application led April 13,

This invention has for its object to provide a novel process and apparatus forTte e apparatus herein shown has been designed for the manufacture of paste mold ware, although it will be readily understood that, by suppressing certain features herein shown, iron mold ware may be produced.l

APrior to this invention such articles have generally been 'made by some process involvingthe collection on a blowing iro'n'or in a mold of a mass of plastic glass, separating osuch mass from the parent body from which it was collected, and blowing the separated mass to form. In the full process herein described in detail, the article is blpwn to form from a portion of'a continuous ribbon of plastic glass, from other' ortions of which other similar articles are being formed, the formation ofA all f said articles being' progressive and sequential.

The apparatus herein shown and described includes: z

1. Means for forming a continuous ribbon of plasticglass. This is shown in the form of a. tankforehearth havinga submerged flow 'orifice and a pair of rolls with a forming pass located below the orifice, through which glass from the orifice passes, and by which, during such passage, the glass is flattened to a ribbon..

2. An endless ribbon carrying conveyor adapted to receive the continuous ribbon from the rollsandhaving, at intervals' therein, apertures through which portions of the ribbon sag to be subsequently blown to shape.

3. An endless series of blowheads moving in unison with the conveyor and above a portion of the operative run thereof, with controllable means for admitting blowing air to-each of said heads at predetermined pressures durin selected portions of the said'run.

4.:- An en less series o f molds moving with the7 conveyor and below a selected portion of the ,run thereof with automatic means for opening and closing the inolds. The molds are providediwith means for rotating them during their travel and for arresting, such rotation-When they are in such position that,

1927. serial iva/183,491.

subsequent steps, and with different mechanisms for' performingthe same.

Referring to the accompanying drawings,

in which corresponding parts are designated by corresponding marks of reference:

Figs. 1 and 2 together constitute a side elevational view of a complete machine embodying this invention, Figiql showing the machine from its feed end to approximately' its middle portion and LFig. 2 showing the machine from this intermediate point to the delivery end; f i

, Fig. 3 is va transverse vertical section on 'the line 3 3 of Fig. 2 showing the relation of the orifice plate, blowhead, and mold mechanisms;

Fig. 3A is a similar view, on an enlarged` scale, o n linel3A-3A of Fig. 1, but also show.

ing the means for edecting simultanenous adjustment of the blowhead system;

Fig. 4 is a sectional plan'view, on the line '4.-4 of Fig. v1, showing the feed end of the machine;

Fig. 5 is a transverse vertical section on'the line 5-5 of Fig. 4;

Figs. 6 and 7 are plan and side elevations.

respectively, of one of the links of the rib bon conveyor; Y'

Fig. 8 i's an enlarged plan view of the roll unit shown in Fig.'4; Fig. 9 isa plan view of the machine with parts removed;

Fig. 10 is a-sectional plan view of the drivinmeohanism on thefline 10-10 of Fig. 2;

ig.v 11 is a longitudinal vertical section through the orehearth and the feed'rolls on the line 11-.11 of Fig. 4;

Fig. 12 is aside elevation, on an enlarged scale, df the feed rolls and drive;

Fig.'l 13 is a. transverse vertical section tithe delivery ena through one of the rolls on'thedine 13-13 of Figsuftand 11.

Figs. 14 and 15 are,\respectively, longi- Fig. 17 is a transverse vertical section on the line 17-17 of Fig. 15, shoving the lower end of a blowhead unit on an enlarged scale;

Fig. 18 is a plan view of a blowhead unit;

Fig. 19 is a longitudinal view, partly in section, showing the relative positions of the blowhead units, blowbox, and puff cam;

Fig. 20 is a 45 vertical section through a Yblowhead valve and yspindle lonthe line 20-20 of Fig. 18;

Figs. 21424 are detail views of a mold carrier unit, Fig. 21 being an end elevation,

\ Fig. 22a side elevation, Fig. 23 a transverse vertical section on the line 23-23 of Figs. 22, 24, and 31, and Fig. 24 a longitudinal vertical section on the line 24-24 of Figs. 21, 23, 31; y, Figs. 25-,30 are horizontal sectional details ofsthe mold carrier .m'echanisin on the line 25-25 of Fig. 23, just above the latch mechanism, showing the successive positions of the operative cycle;

Figs. 31-35 are horizontal sectional details of the mold carrier mechanism on the line 31-31 of Fig.l22, 'parts being removed in Fig. 31, showing the opening and closing means and the( successive positions of the mold carriei' segments; Fig. 36 is a fragmental sectional plan view of a machine, embodying this invention, but differing in certain respects from that shown in the preceding figures, showingthe feed end of the machine, the single oriice drop plates, and the pocket rolls, this view corresponding in general to Fig. 4; I

Fig. 37 is a side elevation of the machine of Fig. y36, showing the pocket rolls, release mechanism and timing adjustment therefor; Fig. 38 is`V an enlarged plan view of the n roll unit shown in Fig. 36;

Fig. 39 is a longitudinal vertical section on the line 39-39 of Fig. 38;

Fig. 40 is a transverse vertical section on the line 40-40 of Fig. 38;

Fig. 41 is a transverse vertical section on 'the line 41---41 of Figs. 38 and 39;

Figs. 42-43 are longitudinal views, partly in section, near the feed and delivery ends, respectively, of a machine embodying the invention of this application, showing blowhead units, a blowbox and a cam differing from those of the preceding figures;

Fig. 44 is a artial side elevation -of the delivery end o the machine, such as that shown in Fig. 36, showing the `stripper plate Y and crack-oil:` bar; n

Fig. 45 is a transverse vertical sect1onpn an enlarged scale, taken on the line 45-45 y of 44; and

Figs. 46 and 47'together constitute a longitudinal central vertical section through the machine shown in Figs. 36-45, with certain parts omitted, Fig. 46 showing the machine from a-point near its feed end to approximately its middle portion, and Fig. 47 showing the machine from this intermediate point to a point near the delivery end.

The glass may be melted in a tank of any approved construction (not shown), provided with a forehearth 51 (Figs. 1 and 11) that has a glass issuing orifice 52 in its bottom, the flow of glass through the orifice being controlled by a regulator 53.

The bottom of the forehearth is raised sufficiently to permit forming rolls 71, 72 carried on a frame 55 to be run beneath the orifice, the frame moving on a track formed by rails 56 (Figs. 1.43).

1. The frame The frame 55 carriesall parts of the apparatus, other than the means for delivering the glass, necessary to`V complete the form'- ing of the articles to be made, including the motor and gearing by which the several parts are driven. y

It comprises an elongated wheel base, from each side of which rises aseries of standards 57' (Figs. 1-3), the corresponding standards on opposite sides being separatedfrom each gether in the vicinity of the standards 57 by a series of bolsters 63. Near the front end the wheelbase supports a motor 64, and the wheel base as a whole is supported on flanged wheels 65 which run on the rails 56.

2. The ribbon forming mechanism Mounted in the gap of the frame 55 near the top thereof, and toward the rear'end, are two water-cooled rolls 71, 7 2,turning respectively around shafts A73, 74, which have their opposite ends carried in brackets 75, 76 that rest on and'A project inwardly from the opposite angle bars 59 on top of the standards (Flg. 13). The (rolls are spaced apart to create a vertical forming pass 77 between them, and through this pass the glass 78, issuing from the outlet orifice 52, asses, being in such passage reduced to the orm of a ribbon 79. To make the most efficient use of the ribbon in the fabrication of the ware, one of the rolls 72 preferably has a series of pockets 80 in its periphery (Fig. 36), by which a series of bosses 81 is formed on a ribbon 79 (Figs. 42 and 43). 

